hostbill not assign ip in proxmox vm automatically

Hi,

I have install hostbill in openvz of proxmox . I have configure hostbill to create vm in proxmox main server. After creating vm from hostbill it assign loopback ip only in vm. I have installed ipam plugin also in hostbill. My network configuration is below. Please let me know if I need to edit anything.

# network interface settings
auto lo
iface lo inet loopback

iface eth0 inet manual

iface eth1 inet manual

auto vmbr0
iface vmbr0 inet static
address
netmask
gateway
bridge_ports eth1
bridge_stp off
bridge_fd 0

Hostbill assign ip to eth0 and that is for internal network only. I want hostbill to assign ip in vm that can accessible from internet.